Players can't gain life. At the beginning of each player's upkeep, that player loses half their life, rounded up.

Haste Echo—Discard a card. (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Flying At the beginning of your upkeep, target player draws a card and loses 1 life.

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

As an additional cost to cast this spell, discard a card. Draw two cards. If the discarded card wasn't a land card, Grab the Prize deals 2 damage to each opponent.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) Whenever another nontoken creature dies, you may draw a card.

Flying At the beginning of your upkeep, draw a card unless target opponent sacrifices a creature of their choice or pays 3 life.

Casualty X. The copy isn't legendary and has starting loyalty X. (As you cast this spell, you may sacrifice a creature with power X. When you do, copy this spell. The copy becomes a token.) +1: Each opponent loses 2 life unless they discard a card. If you control a Demon or Devil, you gain 2 life. −2: Create a 1/1 red Devil creature token with "When this token dies, it deals 1 damage to any target." −7: Target player draws seven cards and loses 7 life.

Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, you may cast that card without paying its mana cost if the two spells have the same mana value.

Flying, trample Whenever you sacrifice another creature, exile cards equal to its mana value from the top of target player's library. Until your next end step, you may play those cards, and mana of any type can be spent to cast those spells. Sacrifice another creature: Rakdos gains indestructible until end of turn. Tap it. Activate only once each turn.

At the beginning of your upkeep, each player draws a card. Whenever an opponent draws a card, that player loses 1 life.

Whenever you draw your second card each turn, each opponent loses 2 life and you gain 2 life. When this creature dies, return another target creature card with mana value 3 or less from your graveyard to the battlefield.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {B} or {R}.

{T}: Add one mana of any color in your commander's color identity.

As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped. {T}: Add {B} or {R}.

({T}: Add {R}.)

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {B}{R}.

This land enters tapped unless a player has 13 or less life. {T}: Add {B} or {R}.

You have no maximum hand size. {T}: Add {C}.

This land enters tapped. {T}: Add {B} or {R}. {1}{B}{R}: Until end of turn, this land becomes a 2/3 black and red Insect creature with menace. It's still a land. Whenever this land attacks, you may discard a card. If you do, draw a card.

{1}, {T}: Add {B}{R}.

({T}: Add {B}.)

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {B} or {R}.

When Kardur enters, until your next turn, creatures your opponents control attack each combat if able and attack a player other than you if able. Whenever an attacking creature dies, each opponent loses 1 life and you gain 1 life.

{T}: Add one mana of any color in your commander's color identity.

This artifact enters tapped. {T}: Add {B}.

This artifact enters tapped. {T}: Add {R}.

Red creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, you may discard a card. If you do, draw a card.

At the beginning of your end step, create a Treasure token for each creature that died this turn. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

{4}, {T}: You may put a creature card from your hand onto the battlefield.

{T}: Add {B} or {R}. {B}{R}, {T}, Sacrifice this artifact: Draw a card.

{T}: Add {B} or {R}. {B}{R}: This artifact becomes a 3/1 black and red Devil artifact creature with first strike until end of turn.

{1}, {T}: Add {B}{R}.

You can't cast Rakdos unless an opponent lost life this turn. Flying, trample Creature spells you cast cost {1} less to cast for each 1 life your opponents have lost this turn.

{T}: Add {C}{C}.

As an additional cost to cast this spell, sacrifice a creature. Return a creature card from your graveyard to the battlefield, then return another creature card from your graveyard to your hand.

Discard a card: You may cast a creature spell from your graveyard this turn. Activate only once each turn. Whenever a nontoken creature you control enters, if you didn't cast it from your hand, it gains haste until your next turn.

Flying, trample When Orcus enters, choose one — • Each other creature gets -X/-X until end of turn. You lose X life. • Return up to X target creature cards with total mana value X or less from your graveyard to the battlefield. They gain haste until end of turn.

Choose one — • Abrade deals 3 damage to target creature. • Destroy target artifact.

Destroy target artifact, creature, or planeswalker.

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

Destroy all creatures. For each nontoken creature destroyed this way, you create a tapped Treasure token.

Flying At the beginning of each player's upkeep, that player sacrifices a monocolored creature of their choice.

Destroy target creature or planeswalker.

Decimate — When Legate Lanius enters, each opponent sacrifices a tenth of the creatures they control of their choice, rounded up. Whenever an opponent sacrifices a creature, put a +1/+1 counter on Legate Lanius.

Whenever a player sacrifices a permanent, this creature deals 1 damage to any target.

Indestructible As long as your devotion to black and red is less than seven, Mogis isn't a creature. At the beginning of each opponent's upkeep, Mogis deals 2 damage to that player unless they sacrifice a creature of their choice.

Destroy target creature.

Choose one — • Exile target player's graveyard. • Destroy target artifact. • Each creature deals 1 damage to its controller.

Flying, trample Whenever Rakdos attacks, sacrifice half the non-Demon permanents you control, rounded up. Whenever Rakdos deals combat damage to a player, that player sacrifices half the non-Demon permanents they control of their choice, rounded up.

Flying, trample When Rakdos enters, flip a coin for each creature that isn't a Demon, Devil, or Imp. Destroy each creature whose coin comes up tails.

Trample, haste When The Balrog of Moria dies, you may exile it. When you do, for each opponent, exile up to one target creature that player controls. Cycling {3}{R} ({3}{R}, Discard this card: Draw a card.) When you cycle this card, create two Treasure tokens.

This spell costs {1} less to cast for each permanent sacrificed this turn. Haste The Balrog can't be blocked except by legendary creatures. When The Balrog dies, destroy target artifact or creature an opponent controls.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Each opponent sacrifices a creature or planeswalker of their choice. II — Each opponent discards a card. III — Put target creature or planeswalker card from a graveyard onto the battlefield under your control.

If this card is in your opening hand, you may begin the game with it on the battlefield. Equipped creature gets +1/+1 and has double strike and trample. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Equipped creature has vigilance. Whenever another artifact or creature is put into a graveyard from the battlefield, put a +1/+1 counter on equipped creature. Equip {2}